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		<H1><A name="_information_schema.constraint_column_usage"></A>CONSTRAINT_COLUMN_USAGE</H1>
		<P>Contains one row for each column, in the current database, that has a constraint 
			defined on it. This information schema view returns information about the 
			objects to which the current user has permissions. The <B>INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE</B>
			view is based on the <B>sysobjects</B>, <B>syscolumns</B>, and <B>systypes</B> system 
			tables.</P>
		<P>To retrieve information from these views, specify the fully qualified name of <B>INFORMATION_SCHEMA</B><I>
				view_name</I>.</P>
		<TABLE id="Table1" cols="3" cellPadding="2" rules="all" width="587" border="1" frame="box">
			<TR vAlign="top">
				<TH class="label" width="39%">
					Column name</TH>
				<TH class="label" width="32%">
					Data type</TH>
				<TH class="label" width="29%">
					Description</TH></TR>
			<TR vAlign="top">
				<TD width="39%"><B>TABLE_CATALOG</B></TD>
				<TD width="32%"><B>nvarchar(128)</B></TD>
				<TD width="29%">Table qualifier</TD>
			</TR>
			<TR vAlign="top">
				<TD width="39%"><B>TABLE_SCHEMA</B></TD>
				<TD width="32%"><B>nvarchar(128)</B></TD>
				<TD width="29%">Table owner</TD>
			</TR>
			<TR vAlign="top">
				<TD width="39%"><B>TABLE_NAME</B></TD>
				<TD width="32%"><B>nvarchar(128)</B></TD>
				<TD width="29%">Table name</TD>
			</TR>
			<TR vAlign="top">
				<TD width="39%"><B>COLUMN_NAME</B></TD>
				<TD width="32%"><B>nvarchar(128)</B></TD>
				<TD width="29%">Column name</TD>
			</TR>
			<TR vAlign="top">
				<TD width="39%"><B>CONSTRAINT_CATALOG</B></TD>
				<TD width="32%"><B>nvarchar(128)</B></TD>
				<TD width="29%">Constraint qualifier</TD>
			</TR>
			<TR vAlign="top">
				<TD width="39%"><B>CONSTRAINT_SCHEMA</B></TD>
				<TD width="32%"><B>nvarchar(128)</B></TD>
				<TD width="29%">Constraint owner</TD>
			</TR>
			<TR vAlign="top">
				<TD width="39%"><B>CONSTRAINT_NAME</B></TD>
				<TD width="32%"><B>nvarchar(128)</B></TD>
				<TD width="29%">
				Constraint name</TR>
		</TABLE>
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